Centrifugal governor.



' no. 664,336. Patented Dec. 18, I900.

. A. SCHULZE. 1

CENTRIFUGAL GOVERNOR.

' (Application filed Mar. 20, 1899.] (No Model.) 2 Sheats8heet l.

No. 664,336. Patented Dec. l8, I900.

A. SCHULZE. H CENTRIFUGAL GOVERNOR. (Application md Mar. 20, 1899.. (No Model.) 2 Sheetm-Sheat 2.

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UNITED STATES PATENT OFFICE.

ANDREW SOHULZE, OF WASHINGTON, DISTRICT OF COLUMBIA, ASSIGNOR OF ONE-HALF TO EMMA S. DOUGLAS, OF ST. LOUIS, MISSOURI.

CENTRIFUGAL GOVERNOR.

SPECIFICATION forming part of Letters Patent No. 664,336, dated December 18, 1900.

Application filed March 20, 1899. Serial No. 709,346- (No model.)

To all whom it may concern:

Be it known that LANDREW SoHULzE,a citizen of the United States, residing in the city of Washington, District of Columbia, have invented certain new and useful Improvements in Centrifugal Governors; and I do hereby declare the following to be a full,clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to certain new and useful improvements in centrifugal governors, and is particularly intended for use where high speed is desired and where it is of spe cial utility to obtain close regulation.

In the accompanying drawings, Figure 1 represents a longitudinal sectional view of a centrifugal governor embodying my improvements. Fig. 2 represents a section thereof. Fig. 3 represents a section thereof on the line 3 3 of Fig. 1. Fig. 4 represents a partial section on the line 4 4 of Fig. 1. Fig. 5 represents a section on the line 5 5 of Fig. 1; and Fig. 6 represents a top plan view, partly in section.

Similar letters of reference indicate similar parts throughout the several views.

It is characteristic of myinvention that the revolving elements of the governor proper are inclosed within a casing in which they act as a fan, the supply of air to the casing being automatically governed by a valve having the capacity of increasing or diminishing the area of the air-inlet and even permitting the airinlet, should occasion require, to be entirely closed.

In the particular embodiment of the general idea illustrated in the drawings, to indicates the governor-stem, revoluble within journals formed in the supporting-frame A and driven from the flanged belt-pulley 1.0 by means of the driving-belt 20 Upon the stem to is fixed the disk w", to which is affixed the annular plate 10 leaving a recess for the reception of the disk 'w said disk 10 having a capacity to shift somewhat in said recess. The disk 20 is provided with wings or beaters w, serving as fan-blades, and is also provided with extensions or lugs 10 to which are pivoted the weights w". The weights to are preferably of cylindrical contour and a with an outlet-opening L018.

screw threaded bolt to is preferably provided, so that the weight may be diminished or increased by adding to or taking away the washers 10 said washers being held in place by the lock-nuts 10 as shown.

The weights w are preferably located opposite each other, and their tendency to separate under the action of centrifugal force may -be regulated by the springs 20 having hooks,

one of which may conveniently engage with a groove in the outer nut 10 and the other of which may conveniently engage with an adj usting-screw 112 as shown. The weights @0 are connected by links wl with a sleeve or collar 10 free to move longitudinally upon the stem to. The sleeve or collar w is adapted to bear against a collar 0 which constitutes a valve for the opening to" of the casing 10 in which the disks and the governorweights revolve, said casing being provided The outward movement of the stem 10 is thus communicated to the valve 0 and also to a stem 0 or the like, leading to the throttle-valve or other valve to be shifted.

It will of course be understood that the stem 0 or the throttle or other valve to which it is connected may be provided with a spring to keep the collar 0 in contact with the sleeve w or in some instances the suction due to the revolution of the disks and governorweights may be relied upon for the same purpose.

Upon the belt 10 is adapted to rest the flanged idle pulley w, mounted upon an arm w which arm is secured to the upper end of an arm w, said arm 11; being connected to a rocking base w having thereon an incline or cam w It will be evident that should the belt 10 break the idle pulley w in its fall will revolve the rocking base w thereby introducing the cam or incline w between the valve 0 and the side of the casing w, whereupon the stem 0 will be caused to immediately actuate the throttle-valve to close down the machine governed. A similar device to be manually operated may be provided, consisting of the rocking base 10 having a link incline or cam 10 and a handle L023, whereby in any emergency the stem 0 may be operated in like manner.

The mode of operation of the invention I Therefore the weights will be separated not only by the centrifugal force exerted upon them, but also by the wedging or raising action of the inclines 10 this double action sensibly increasing their range of movement. Furthermore, the inclines @0 will cause the weights to respond very promptly to any sudden increase or diminution of speed, as will be apparent. The weights w communicate motion to the disk 10 which revolves with them, and the flat end surfaces of the weights, together with the Wings w, serve as fanbeaters, spaced at substantially equal distances apart, and draw in a current of air through the opening to", said air being expelled through the opening 1.0 The amount of air admitted through the inlet-opening w" varies with the varying positions of the valve 0 The arrangement is such that as the speed of rotation increases and the balls diverge more and more the valve 0 moves farther away from the inlet-opening and admits a larger and larger quantity of air, thereby progressively increasing the resistance ofiered by the entering air to the revolution of the governor.

Having thus described my invention, what I claim is 1. A centrifugal governor, provided with an inclosing casing in which the rotating parts act as a fan and means for establishing a flowof air through the casing; substantially as described.

2., A centrifugal governor, provided with an inclosing casing in which the rotating parts act as a fan, said casing being provided with air inlet and outlet openings and means for varying the flow of air through the casing substantially as described.

3. A centrifugal governor, provided with through the inlet-opening;

through the inlet-opening; substantially as casing having inlet and outlet openings, and

a valve actuated from the governor-stem for increasing or diminishing the flow of air through the inlet-opening; substantially as described.

6. A centrifugal governor, provided with swinging weights, a driving-disk therefor, a disk to which the weights are pivoted, said latter disk having fan-blades, an inclosing casing having inlet and outlet openings, and a valve actuated from the governor-stem for increasing or diminishing the flow of air substantially as described.

7. A centrifugal governor provided with swinging weights, a driving-disk therefor, said disk having inclined recesses with which the Weights engage, a disk to which the weights are pivoted, said latter disk having fan-blades, an inclosing casing having inlet and outlet openings and a valve actuated from the governor-stem for increasing or diminishing the flow-of air through the inlet-opening; substantially as'de'sfii ibed.

8. A centrifugal governor, provided with swinging weights, springs joining the outer ends of the weights so as to oppose their outward x'fiovement, fan-blades, an inclosing casing ha-ving inlet and outlet openings, and a valve" actuated from the governor-stem for increasing or diminishing the flow of air through. the inlet-opening; substantially as described.

ANDREW SOHULZE.

Witnesses:

JANE S. FAIR, HUGH M. STERLING. 

